diff --git a/CHANGELOG.md b/CHANGELOG.md
index 85b5f9b9..468ffc65 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,8 +4,14 @@ All notable changes to this project will be documented in this file. Dates are d
 
 Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 
+#### [v1.0.0-next.40](https://github.com/oceanprotocol/ocean.js/compare/v1.0.0-next.39...v1.0.0-next.40)
+
+- update default ESM export [`#1456`](https://github.com/oceanprotocol/ocean.js/pull/1456)
+
 #### [v1.0.0-next.39](https://github.com/oceanprotocol/ocean.js/compare/v1.0.0-next.38...v1.0.0-next.39)
 
+> 5 May 2022
+
 - Issue-#1409: Excessive contract calls [`#1424`](https://github.com/oceanprotocol/ocean.js/pull/1424)
 - Issue-#1425: Use proper config in constructors [`#1430`](https://github.com/oceanprotocol/ocean.js/pull/1430)
 - Bump release-it from 14.14.2 to 15.0.0 [`#1449`](https://github.com/oceanprotocol/ocean.js/pull/1449)
@@ -13,7 +19,7 @@ Generated by [`auto-changelog`](https://github.com/CookPete/auto-changelog).
 - Bump @types/node from 17.0.30 to 17.0.31 [`#1451`](https://github.com/oceanprotocol/ocean.js/pull/1451)
 - use getConfig(network) function to get proper configuration [`b259b16`](https://github.com/oceanprotocol/ocean.js/commit/b259b16d452b90ea05dfefcbcb3a52fe8b009d28)
 - change param order [`2d744c3`](https://github.com/oceanprotocol/ocean.js/commit/2d744c3dd28566f1b2465085ec9b886e7943376f)
-- fix test [`1b93d86`](https://github.com/oceanprotocol/ocean.js/commit/1b93d86df5af96aff4ba4413f9b138b18d15a5f6)
+- Release 1.0.0-next.39 [`af5137c`](https://github.com/oceanprotocol/ocean.js/commit/af5137c3702ad03815ab6cb02265ccef45e7841d)
 
 #### [v1.0.0-next.38](https://github.com/oceanprotocol/ocean.js/compare/v1.0.0-next.37...v1.0.0-next.38)
 
diff --git a/package-lock.json b/package-lock.json
index 7fba2bbd..8b895aa5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@oceanprotocol/lib",
-  "version": "1.0.0-next.39",
+  "version": "1.0.0-next.40",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "@oceanprotocol/lib",
-      "version": "1.0.0-next.39",
+      "version": "1.0.0-next.40",
       "license": "Apache-2.0",
       "dependencies": {
         "@oceanprotocol/contracts": "^1.0.0-alpha.31",
diff --git a/package.json b/package.json
index 067d154f..c964791e 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@oceanprotocol/lib",
   "source": "./src/index.ts",
-  "version": "1.0.0-next.39",
+  "version": "1.0.0-next.40",
   "description": "JavaScript client library for Ocean Protocol",
   "main": "./dist/lib.js",
   "umd:main": "dist/lib.umd.js",